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Avalanche multiplication for quantum dot photodetectors with ultrahigh detectivity

Nature Nanotechnology (2024)Cite this article

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Multiple exciton generation can increase the detectivity in photodetectors but has limited effect in infrared detectors. Now, a strategy for kinetically pumped avalanche multiplication has been demonstrated in colloidal quantum dot-based infrared photodetectors, achieving an 85-fold multiplication gain and ultrahigh detectivity of 1.4 × 1014 Jones.

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Fig. 1: Avalanche charge multiplication in CQD-based IRPDs.

References

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This is a summary of: Kim, B. et al. Ultrahigh-gain colloidal quantum dot infrared avalanche photodetectors. Nat. Nanotechnol. https://doi.org/10.1038/s41565-024-01831-x (2024).

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Avalanche multiplication for quantum dot photodetectors with ultrahigh detectivity. Nat. Nanotechnol. (2024). https://doi.org/10.1038/s41565-024-01832-w

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  • DOI: https://doi.org/10.1038/s41565-024-01832-w

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